Patents by Inventor Yana Liu

Yana Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11963534
    Abstract: An application of fengycin family lipopeptides in pest control is provided, and Fengycin family lipopeptides are used for pest control, with especially strong killing effects on Homoptera and Coleoptera pests. A method is provided for treating seeds with fengycin to protect seeds and plant organs formed later from pests, so as to protect seeds from pests by coating the fengycin family lipopeptides on the surface of seeds.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: April 23, 2024
    Assignee: INSTITUTE OF BIOLOGY, HEBEI ACADEMY OF SCIENCES
    Inventors: Hongwei Liu, Caimiao Yao, Yongfeng Liu, Liping Zhang, Yana Wang, Wenya Zhao
  • Patent number: 11926063
    Abstract: The present invention provides a fractional order sliding mode synchronous control method for a teleoperation system based on an event trigger mechanism. The method comprises: establishing a dynamics model for the teleoperation system by considering external disturbance and parameter uncertainty, selecting a master robot and a slave robot, interactively establishing the teleoperation system through a communication network, determining system parameters of the dynamics model, designing a fractional order nonsingular rapid terminal sliding mode surface equation by utilizing a position tracking error and a fractional order calculus, setting a trigger event condition of information interaction between the master robot and the slave robot, designing a self-adaptive fractional order nonsingular rapid terminal sliding mode controller based on the sliding mode, designing a Lyapunov function to carry out stability analysis, proving the boundedness of a closed-loop state signal of the system.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: March 12, 2024
    Assignee: Yanshan University
    Inventors: Changchun Hua, Yilu Wang, Yana Yang, Weili Ding, Liuliu Zhang, Shuang Liu, Guanglei Zhao, Wenliang Pei
  • Patent number: 10075456
    Abstract: The disclosed computer-implemented method for detecting exploit-kit landing pages may include detecting an attempt to access a web page via a computing device. The web page may be an unknown landing page of an exploit kit that includes a script that may be used by the exploit kit to access attributes of the computing device that may be used by the exploit kit to select suitable exploit code for compromising the computing device. The disclosed computer-implemented method may further include (1) monitoring one or more behaviors of the script, (2) detecting an attempt by the script to access an attribute of the computing device, (3) determining, based on the attempt to access the attribute, that the web page is likely a landing page of the exploit kit, and (4) performing a security action in response to the determination. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: September 11, 2018
    Assignee: Symantec Corporation
    Inventors: Jeet Morparia, Liam OMurchu, Ravi Patel, Valentine Saengphaibul, Yana Liu